What’s Vulnerable › Vulnerabilities
CVE-2024-20496: Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-09-25 · updated 2026-06-17
- Weakness: CWE-787
Description
A vulnerability in the UDP packet validation code of Cisco SD-WAN vEdge Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to incorrect handling of a specific type of malformed UDP packet. An attacker in a machine-in-the-middle position could exploit this vulnerability by sending crafted UDP packets to an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition on the affected system.
Affected products
- Cisco SD-WAN vEdge Cloud: 19.2.1, 20.1.12, 18.4.4, 19.3.0, 18.3.8, 19.2.2 (+71)
- Cisco SD-WAN vEdge router: 18.4.303, 18.3.7, 19.3.0, 18.2.0, 20.1.12, 19.2.099 (+75)
References
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